Solar and wind farms must now ride out grid disturbances, like old power plants
What happened
The US energy regulator approved new rules for how solar farms, wind turbines, and battery storage connect to the power grid. These rules force these new power sources to stay online during temporary grid problems, making the grid more stable.
Why it matters
New power sources like solar and wind used to disconnect from the grid during minor voltage or frequency dips. This made the grid less stable as more of them came online. Now, these power sources must stay connected through those disturbances, making the grid more robust as it adds more renewable energy.
The signal
Watch for reports from grid operators on how often solar and wind farms disconnect during grid disturbances, and if those numbers drop over the next year.